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1、Unit 5 Net Changes Life (1)Part I Warming upA. Key words:email messageaddressesQueen Elizabeth IIJimmy Carteremail accountshoaxVocabulary:crashcoordinateaccounthoaxMaineTapescript：Great Dates in Email HistoryOctober 1969Leonard Kleinrock, a UCLA computer science professor, sends the first email mess

2、age to a colleague at Stanford. The computer promptly crashes.March 1972Ray Tomlinson, author of the first email software, chooses the "" for addresses: "I got there first, so I got to choose any punctuation I wanted."February 1976Queen Elizabeth II becomes the first head of Stat

3、e to send an email message.Fall 1976Jimmy Carter and Walter Mondale use email every day during their campaign to coordinate their travel schedules. A single message costs US $ 4 to send.September 1983Colby College in Waterville, Maine, becomes one of the first institutions of higher education to ass

4、ign email accounts to all its students.December 1994A widely circulated email hoax appears, warning that reading an email entitled "Good Times" will erase your hard drive and destroy your processor.December 1998In the movie You've Got Mail, a celebration of email romance, Meg Ryan and

5、Tom Hanks recreate The Shop Around the Corner online. The original movie, The Shop Around the Corner, was shown in 1937.B.Key words:Information superhighway shorthand abbreviationsVocabulary:techiezoomdecodestandbymake the roundslisten to a short talk about the abbreviations used on the Internet. Wh

6、at do these abbreviations mean? Write down the full meaning.AISIIMHOFWIWCMIIWAAMOFBIONFYIMYOBSOPTAFNBCNUas I see itin my humble opinionfor what it is worthcorrect me if Im wrongas a matter of factbelieve it or notfor your informationmind your own businessstandard operating procedurethats all for now

7、be seein youTapescript:One feature of the information superhighway is that the traffic travels fast, and techies use their own special shorthand to keep messages zooming along. Today we'll help you decode tech talk by answering some not so frequently asked questions aboutabbreviations on the Int

8、ernet. What does it mean when a message includes the letters AISI or IMHO? AISI stands for "as I see it" and IMHO is shorthand for "in my humble opinion." Some modest folks will also add FWIW before sharing their opinion, which stands for "for what it's worth." Othe

9、rs express their disapproval with the letters CMIIW. That is, "correct me if I'm wrong."The list of commonly abbreviated phrases on the Net is nearly endless. As a matter of fact, AAMOF stands for "as a matter of fact," and "believe it or not" gets posted as BION.Ar

10、e there any pre-Information-Age abbreviations still making the rounds in this high-tech era? You bet. The old standbys FYI, MYOB, and SOP which stand for "for your information," "mind your own business," and "standard operating procedure'' are still frequently used t

11、oday even in email. Since time is getting short, has the Net given us truly short and clear ways to say good-bye? Try TAFN (that's all for now), and BCNU (be seein' you).CKey words: Tim Berners-Lee world wide webVocabulary: primitiveYou are going to hear some statements. Each statement will

12、be followed by a wh- word. Write down the relevant segments according to the wh-word. For example if you hear “The boy was looking for his mother.” “Whom?”, Just write down the words “his mother.”Who?When?When?Where?How many?What?To whom?Tim Berners-LeeIn the 1980sIn 1990on to the Internet10 to 100,

13、000e-commercepeople with imagination and new ideasTapescript:1. Tim Berners-Lee is the man who wrote the software program that led to the foundation of the World Wide Web./Who?2. In the 1980s scientists were already communicating using a primitive version of email. / When?3. In 1990 Tim Berners-Lee

14、wrote programs which forni the basis of the World Wide Web. / When?4. In 1991 his programs were placed on to the Internet./ Where?5. Between 1991 and 1994 the number of web pages rose from 10 to 100,000./How many?6. Right now the world is focused on e-commerce. / What?7. The invention of the web bri

15、ngs rapid rewards to people with imagination and new ideas. / To whom?Part II Network and networkingA. Key words:connectionsystembroadcastingtelevisioncomputersrelations Vocabulary: costlyA1 Listen to a report about the word “network”. Supply the explanation for the word:NetworkNet + WorkA systemMat

16、erials that are connectedA connection of systems that work togetherRadio and TV stations, computers, peopleA2 Now listen again. Focus on the original use and modern use of the word “network”. In the late 1800s Meaning: connection of railroads or other vehicles Example: Complete areas are networked b

17、y trolley cars. In 1914 Meaning: connected system of radio stations Modern uses of the word Meaning 1: system linking a number of computers together Example: Many companies and government agencies share the same computer network. Meaning 2: Increasing relations between people (by network) Example: M

18、any Americans network to get better jobs or to meet new friends.Tapescript.Few things in this world change as fast as languages. Every day, new words are created to deal with new ideas or new technologies. New meanings also are added to existing words. A dictionary published years ago may show one o

19、r two meanings for a word; a dictionary published today may list several more meanings for the same word. Network is one such word. It combines two words. The first is "net," it means materials that are connected; the second is "work." One meaning of "work" is a system.

20、 Network means a connection of systems that work together. The systems thatnetworks connect can be very different. For example, radio and television stations can be connected in the network, so can computers and even people.Word expert Milford Matthew found written uses of the word "network&quo

21、t; in the late 1800s. The word then was used as a verb, a word that shows action. At that time network meant the connection of railroads or other vehicles used for travel. One publication said it is only a question of time when the railroads will network an area of the American west called the "

22、;Pan Handle." Another publication of the time said complete areas are networked by trolley cars, which are a kind of electric train. Now we often hear network used in connections with broadcasting. The Barnhart Dictionary of New English says that as early as 1914, people used it to mean a conne

23、cted system of radio stations. This meaning continues to be popular. A more modern use of the word "network" is linked to computers. A network is a system that links a number of computers together. Networks make it possible for people who use computers to share information in costly equipm

24、ent. Many companies and government agencies share the game computer network. The computers are linked through a main computer or through special lines. Some people are able to do their jobs from their home computers.Computer networks also permit an exchange of unofficial information and discussions

25、between computer users. By linking their computers to telephones, people can buy goods through their computers. They can send messages to friends in many countries. Another modern use of the word "network" concerns relations between people. Ideas and information are exchanged by people who

26、 network to share interests and goals. Many Americans network to get better jobs or to meet new friends. Meeting new friends by networking is not work though is fun.B. Key words: wire dormitories high-speed Internet access a top priorityVocabulary: merger pipeline envision prioritymeager budget frac

27、tion bulktoll mow down simultaneously antiquatedB1 Listen to a report about the internet. Focus on the areas and examples that the internet will bring changes in. Supply the missing information.AreasExamplesAcademicsa. registering for classesb. getting assignments and research papersc. attending pro

28、fessors “virtual office hours”d. posting course lecturesEntertainmenta. data containing music filesb. online gamesCommunicationsa. instant messagesb. toll-free phone callsCommercee-commerce ordersB2. Now discuss the following questions after you have heard the report.1. When you choose a university,

29、 will you consider high-speed Internet access a top priority? Why or why not?2. What facilities do you think are a must that a university should offer in the future?3. What do you think of attending professors' "virtual office hours" online? Is it better than the traditional way?Tapesc

30、ript:The proposed merger of America Online and Time Warner anticipates an age when high-speed Internet access is everything. It will be a pipeline for almost all the entertainment, communications and information that people consume. It is an era so distant to most Americans that they can hardly envi

31、sion it. And yet it already exists. In fact, it is the only world that today's college students know. Colleges across the United States have spent hundreds of millions of dollars in recent years wiring dormitories for high-speed Internet access. When admissions people go out and talk to students

32、 these days, the students always ask, "Do you have a high-speed network?" Indeed, for today's students, having high-speed Internet access is a top priority. They base their housing decisions on it, and restructure their meager student budgets to afford it. College administrators acknow

33、ledge that academic pursuits are just a fraction of the activity on their campus networks. The bulk of the traffic consists of data containing music files, instant messages, toll-free phone calls, e-commerce orders, online games and just about anything. At a high-rise dorm at the University of South

34、ern California, walking down the hallway on the eighth floor almost any time of day, you're likely to hear students in separate rooms shouting at each other - "You killed me! "- as they mow each other down in online games played over the network. Friends from opposite ends of the floor

35、 simultaneously make for the elevators. They've just messaged each other by computer that it's time to head off to the dining commons. To them, knocking on someone's door is an antiquated 20th century tradition.Today's students register for classes, get their homework assignments, re

36、search papers and attend professors' "virtual office hours" online. Some universities even post course lectures on the Net, so that students can review them any 'time they wish. Just as one of the students put it: "We live our lives over the Internet."Part III Future of t

37、he InternetA Key words: future everywhere experimenting anarchy asset threat Vocabulary: vague clerical asset Internet World Trade ShowYou are going to hear an interview on the future of the Internet. Pay a special attention to the main points that some specialists say about the Internet. Complete t

38、he following statements.1. Technology is moving from the desktop into our everyday life.2. The Internet is the worlds largest experimenting anarchy.3. Some languages will disappear.4. Economies are changing.B Key words: networked individualism social net works electronic interaction Vocabulary: inte

39、ract contradict flesh-and-blood hermit make-believe flicker child-rearingB1 Listen to a report about the role of Internet interaction. Fill in the following chart with key words.Traditional social interchangeElectronic interaction through computerVoice to voice, person to person, in real time with:1

40、. flesh-and-blood relatives2. friends3. neighbors4. colleagues at work or5. by phonePutting us in touch with many more real people (cyber friends) and helping us deal with major life decisions on:1. careers2. medical crises3. child-rearing4. choosing a school or collegeB2 Listen to the report again.

41、 Find out what the tricky term “networked individualism” means and fill in the blanks.Networked individualismkeeping more to ourselvesreaching out to more peoplePart IV Short talks on listening skillsListen to the short talk entitled "Be Careful with Numbers." Some important words are take

42、n away from the written passage. Supply the missing words.Be Careful with NumbersQuick and accurate response to numbers is very important in daily communication. Telephone numbers, addresses, prices, temperatures, time and dates are all closely linked with the use of numbers. Besides, numbers also play a very important part in broadcast programs such as s